QUESTION Please explain the life cycle of a mosquito. ANSWER Mosquitoes are insects which go through several life stages, starting out as eggs, then hatching into larvae before developing into adults. Mosquito eggs are laid in slow-moving or stagnant pools of freshwater, to provide suitable habitat for the larvae once they hatch. Different species of mosquito prefer different water … [Read more...]
Malaria Mosquito Classification
QUESTION What is the classification of mosquito that cause malaria? ANSWER The mosquitoes that cause malaria in humans (and indeed also in all other mammals) all belong to the genus Anopheles. They belong to the family Culicidae, which also includes other disease vectors such as Culex and Aedes, which transmit other diseases such as dengue virus, lymphatic filariasis, West Nile virus and … [Read more...]
Anopheles Mosquito
QUESTION What does Anopheles looks like? ANSWER Mosquitoes of the genus Anopheles are responsible for all transmission of malaria in mammals, including to humans. They are night-feeding mosquitoes, usually biting between dusk and dawn, though they may also be active during the day in heavily shaded environments. Like all mosquitoes, Anopheles are usually found either as freshwater … [Read more...]
Anopheles Mosquito
QUESTION Why is it only the female anopheles mosquito alone can cause malaria but not the male anopheles mosquito or any other mosquitoes? ANSWER Malaria is actually caused by a single-celled parasite called Plasmodium—it is transmitted via the bite of a female mosquito, of the genus Anopheles, as she takes a blood meal from a human (or other mammal) host. Male mosquitoes do not … [Read more...]
Sterilizing Mosquitoes to Fight Malaria
QUESTION Is it possible to breed mosquitoes in the laboratory and then sterilize them and release them into the environment in order to reduce their rate of reproducing. ANSWER That is a very good question, and indeed efforts to genetically modify mosquitoes in order to control the various diseases they transmit are underway in many laboratories across the world. For almost 15 years, … [Read more...]
Mosquito Types
QUESTION How many types of mosquito are there? ANSWER There are over 3,500 species of mosquito! However, most of these do not transmit any diseases to humans. Mosquitoes are usually divided into two sub-families, the Anophelinae and the Culicinae. The latter group consists of about 40 genera, including Culex and Aedes, which contain some species that transmit diseases to humans (such as … [Read more...]
Malaria and Ross River Fever
QUESTION Is malaria similar to Ross river Fever which is common in Australia? If you have Ross River and get bitten by a mosquito can the mosquito pass it on to some one else. ANSWER Ross River fever is similar to malaria in that both are transmitted by mosquitoes. However, Ross River fever is caused by a virus, whereas malaria is caused by a protozoan (single-celled) parasite. Also, the … [Read more...]
Evolution of Malaria
QUESTION how did malaria evolve? ANSWER Malaria in humans probably evolved independently several times, and both times likely due to a cross-over event from a closely related primate malaria. For example, Plasmodium vivax is evolutionarily closely related to several species of malaria found in macaque monkeys in south-east Asia, and so a cross-over of one of those species into human, with … [Read more...]
What are mosquito larvae?
QUESTION What are mosquito larvae? ANSWER Larvae are one of the life stages of mosquitoes; they are baby mosquitoes, if you will. Adult mosquitoes lay eggs as a "raft" on the surface of a body of fresh water—they prefer still and stagnant pools. These eggs then hatch into the mosquito larvae, which live in the freshwater pool until they form a pupa, just under the surface. These … [Read more...]
Screening Mosquito House Entry Points as a Potential Method for Integrated Control of Malaria
Partial mosquito-proofing of houses with screens and ceilings has the potential to reduce indoor densities of malaria mosquitoes. We wish to measure whether it will also reduce indoor densities of vectors of neglected tropical diseases. Methodology: The main house entry points preferred by anopheline and culicine vectors were determined through controlled experiments using specially … [Read more...]